T25,G1 Heater Matrix Valve

Replacement manual heater control valve for Volkswagen models fitted with a cable-operated heating system. This valve controls the flow of hot coolant through the heater matrix, allowing the cabin temperature to be adjusted from the dashboard controls.

Over time, heater valves can become stiff, leak or fail internally, leading to poor heater performance, coolant leaks or an inability to regulate cabin temperature. Replacing a worn valve restores proper heater operation and ensures reliable coolant flow control.

Manufactured as a direct replacement for the original unit and designed for straightforward installation.

Specifications:

• Manual cable operated
• Heater matrix control valve
• Stop valve design

Quantity:

• Sold individually

Fitment:

VW Golf Mk1:

• 1.1 Petrol (1974-1983)
• 1.3 Petrol (1979-1983)
• 1.5 Petrol & Diesel (1976-1983)
• 1.6 Petrol & Diesel (1975-1984)
• 1.8 Petrol (1982-1983)

VW Jetta Mk1:

• 1.1 Petrol (1979-1984)
• 1.3 Petrol (1979-1984)
• 1.5 Petrol & Diesel (1978-1984)
• 1.6 Petrol & Diesel (1978-1984)
• 1.8 Petrol (1982-1984)

VW Passat B1:

• 1.3 Petrol (1973-1980)
• 1.5 Petrol & Diesel (1973-1980)
• 1.6 Petrol (1976-1980)

VW Passat B2:

• 1.3 Petrol (1980-1988)
• 1.6 Petrol & Diesel (1980-1988)
• 1.8 Petrol (1983-1988)
• 1.9 Petrol (1981-1983)
• 2.0 Petrol (1983-1988)

VW Transporter T3 / Type 25:

• 1.6D CS (1981-1987)
• 1.6TD JX (1984-1992)
• 1.7D KY (1984-1992)
• 1.9 Waterboxer DF, DG, DH, GW (1982-1992)
• 2.1 Waterboxer DJ, MV, SS (1985-1992)

Suitable for Van, Bus, Camper, Caravelle, Multivan and Platform/Chassis models.

Additional Information:

• Controls coolant flow through the heater matrix
• Manual cable operated design
• Direct replacement for original valve
• Helps restore correct cabin temperature control
• Ideal for fixing leaking or seized heater valves

OEM Part Numbers:

• VW 171819809A
• VW 171819809E
• VW 211819809
• VW 211819819